My house is on piers with a ¾” subfloor. I would like to install a floating laminate finished floor. Do I have to put down cement backerboard first, or can I just use foam underlayment under the laminate flooring?

– Ralph

Hi Ralph,

Cement backerboard is mainly used under tile to provide a stable subfloor that adheres well to thin-set tile adhesive. As long as your existing subfloor is:

  • Firm and in good shape.
  • Well attached to the joists.
  • Level, with no uneven or low spots.

Then you should be fine using just the foam underlayment on your existing subfloor before installing laminate flooring.

Good luck with your project,


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    Danny Lipford

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    Danny Lipford is a home improvement expert and television personality who started his remodeling business, Lipford Construction, at the age of 21 in Mobile, Alabama. He gained national recognition as the host of the nationally syndicated television show, Today's Homeowner with Danny Lipford, which started as a small cable show in Mobile. Danny's expertise in home improvement has also led him to be a contributor to popular magazines and websites and the go-to source for advice on everything related to the home. He has made over 200 national television appearances and served as the home improvement expert for CBS's The Early Show and The Weather Channel for over a decade. Danny is also the founder of 3 Echoes Content Studio, TodaysHomeowner.com, and Checking In With Chelsea, a décor and lifestyle blog.

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